ἐκμελαίνομαι
From LSJ
ἀσκεῖν περὶ τὰ νοσήματα δύο, ὠφελεῖν ἢ μὴ βλάπτειν → strive, with regard to diseases, for two things — to do good, or to do no harm | as to diseases, make a habit of two things — to help, or at least, to do no harm
English (LSJ)
A to be darkened, grow dark, Heraclit.All.39; ὑπὸ [νυκτός] ib.45.
Greek (Liddell-Scott)
ἐκμελαίνομαι: παθ., γίνομαι κατάμαυρος, Κλήμ. Ἀλ. 45.
Spanish (DGE)
oscurecerse las nubes en invierno, Heraclit.All.39, τόπος ὑπὸ ταύτης (νυκτός) Heraclit.All.45
•ennegrecerse (καπνός) ᾧ ... τυφόμενοι ἐκμελαίνονται de ídolos, Clem.Al.Protr.4.51.